Webstee



ED ISTATES PATENT O F .ALBERT EYWEBSTEE,0E MANCHESTER, NEWHAMPsHIEE,Assrenonor on HALETo JEROME. J. WEBSTER, or MAGOG, oUEBEo, CANADA.

CARRIAG E-SPR IN G.

SPECIFICATION forming part Of Letters Patent No. 244,960, dated July 36,1881.

I Application filed June 21, 1880. (Model) Patented in Canada November23, 1880.

To all whom it may concern Be it known that I, ALBERT-B. WEBSTER, acitizen of the United States, and a resident of Manchester, in thecounty of Hillsborough and State of New Hampshire, have invented certainnew and useful Improvements in Carriages; and I do hereby declare thatthe following is a full, clear, and exact description of the same.

My invention has relation to the spring-supports of carriage-bodies, andhas for its object to provide such an improved arrangement of springsthat the carriage-body will be more evenly supported and a uniformmotion of the springs will be attained.

My invention consists,first, in the combination, with the side bars, oflongitudinal semielliptical springs bent laterally, inwardly, and alsoupwardly to support the sills,and pivoted at their ends to supplementalsprings attached to the side bars; second, in the combination, with theside bars carrying the supplemental springs and the semi-ellipticalsprings bent laterally, inwardly, and upwardly, of a centrallongitudinal spring secured to a central cross-l,

bar uniting the semi-elliptical springs, said central spring having itsends connected with links, a deep-bowed yoke receiving said links andadmitting of the free play of the same,

substantially as hereinafter described; third,

in the combination, with the side bars of sprin gs bent laterally,inwardly, and upwardly, of supplemental springs secured attheir innerends to the side bars, and clips embracing the side bars andsupplemental springs, and adjustably secured in place in order to varythe length of the free ends of the supplemental springs, all ashereinafter more fully described.

In the accompanying drawings, Figure 1 is a plan view of the under sideof the frame, showing my invention. Fig. 2 is a portion of one of theside bars, showing the end of one of the semi-elliptical springs securedto the spring-plate. Fig. 3 is a detail of the link-connection of thecentral spring, showing the deepbowed yoke. Fig. 4 is a longitudinalcentral section through Fig. 1 in inverted position.

A A indicate two semi-elliptical flat side springs having their centralportions extending inwardly to permit their free vertical play and,upwardly to support the sills F, to which the body of the vehicle isattached. These springs A are united by a rigid cross-bar, O, to which acentral spring, G, is suitably secured. The ends of the springs A arepivoted to the free end of the supplemental springs B, the latter beingsecured at their inner ends to the side bars by bolts b, and furtherconnected with the said side bars by the clips B, which can be adjustedby loosening the nuts and sliding the clip along the side 'bar,in orderto vary the length of the free ends of the springs B, whereby thelengthof the semi-elliptical springs will be practically increased ordecreased according tothe adjustment of the said clips. By this meansthe tension of the springs may be regulated to accommodate them todifferent loads. The ends of the spring G are loosely connected, therear end being pivotally secured to the cross-pin of a U-shaped link,which rests loosely in a deep-bowed yoke, H, which is secured to therear axle.

The sill-pieces for supporting the body are secured by clips at to thesprings A at their central portion. The forward ends of the side bars,A, rest on the bolster C while their rear ends rest on the rear axle,as, usual.

The deep-bowed yoke H permits of a free movement of the link'h restingtherein, so that the longitudinal play of the central spring, G, may begreatly increased.

By the above construction and arrangement the jar and shocks incident torough roads are more evenly distributed, the force applied to thesprings A being taken up partly by the supplemental spring-plates. Thebackward and forward motion and swaying of the body of the vehicle socommon to other carriages are avoided by this construction.

Prior to my invention vehicle-springs have been secured to yokes orclips by means of links, and the running-frame of the vehicle has alsobeen provided with a central longitudinal spring; also, the centralportions of side springs of a vehicle have been bent outwardly andupwardly, the ends of said springs being pivoted to bearing-piecessecured to the under side of the vehicle-body. Hence these features arenot broadly claimed in this application.

What I claim isv 1. The combination, with the side bars connected withthe front and rear axles, of the longitudinal semi elliptical springshaving their central portions bent inwardly and upwardly adjacent to theside bars, for supporting the side sills of the body parallel to theside bars, and having each of their ends attached to a supplementalspring-plate, 13,0011- nected with the under side of the side bars,substantially as shown and described.

2. The combination, with the side bars carrying the supplemental springsand the springs A, of the central longitudinal spring Gr, secured tocross-bar C, uniting the springsA and haviug its ends connected withlinks, and the deepbowed yoke H, receiving said links and admitting ofthe free play of the same, substantially as described.

3. The combination, with the side bars of the springs A, bent laterally,inwardly and up- 20 wardly, of the supplemental springs 13, secured attheir inner ends to the side bars, and the clips B, embracing the sidebars and the supplemental springs, and adjustably secured in place, inorder to vary the length of the free 2 5 end of the supplementalsprings, substantially as described.

ALBERT B. WEBSTER.

Witnesses:

D. D. PERKINS, H. D. LORD.

